perf trace: Use zfree() to reduce chances of use after free (8e96f741) · Commits · Mirrors / git.kernel.org / pub_scm_linux_kernel_git_stable_linux

Commit 8e96f741 authored Apr 12, 2023 by

Arnaldo Carvalho de Melo Committed by Greg Kroah-Hartman Sep 19, 2023

perf trace: Use zfree() to reduce chances of use after free

[ Upstream commit 9997d5dd

 ]

Do defensive programming by using zfree() to initialize freed pointers
to NULL, so that eventual use after free result in a NULL pointer deref
instead of more subtle behaviour.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Stable-dep-of: 7962ef13

 ("perf trace: Really free the evsel->priv area")
Signed-off-by: Sasha Levin <sashal@kernel.org>

parent 414cf7a2

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